DC-DC Step Down Power Module LM2596 Module 7V-35V to 1.25V-30V 3A
Description:
Input Voltage: 5-35V
Rated Output Current: 3A
Output Voltage: Continuously adjustable from 1.25 V to 30V
The dropout voltage: 1.5V, because of reducing module, in order to
ensure the output steady. Please keep the minimum 1.5V pressure
difference.
This product with the charge constant current indicating lamp, the
charge indicator lamp, lamp current adjustable ultra small volume.
Size: 48mm (L) *24mm(W) *11.4mm(high), not containing potentiometer
(including the potentiometer height 13mm).
Module nature: Non isolated step-down constant current. Constant
voltage module (CC CV). Charging module.
Scope of application: High power LED constant current drive,
Lithium battery charging (including ferroelectric), 4V, 6V, 12V,
14V, 24V battery charge, NiCd and NiMH battery (batteries) charge,
solar panels and wind generators.
Output voltage:
1.Adjustable continuously (1.25-30V adjustable);
2.Requires fixed output (between 1.25-30V arbitrary choice).
Adjustable mode: Connect the power correctly(7-35V), and then
monitor the output voltage use multimeter, and potentiometers
(generally, clockwise turn boost, inverse to buck).
Output voltage: Continuously adjustable (1.25-30V load regulation).
Maximum output current: 3A, (more than 15W install fins please).
Turn lamp current: constant current value * (1% - 100%), turn lamp
current and constant current value linkage, such as constant
current value is 3A, turn lamp current set to 0.1 times of the
constant flow (0.1*3A=0.3A), when the value of the constant current
regulation into 2A, then turn the lamp current is 0.1 times of the
constant flow (0.1*2A=0.2A).
The dropout voltage: 2V
Output power: Natural cooling 15W
Efficiency: 92% (maximum 92% (the higher the voltage, the higher
efficiency)
Output ripple: 20M bandwidth (only for reference)
Input 12V output 5V 3A 60mV (MAX)
Working temperature: industrial grade (-40 ℃ to +85 ℃)
(environmental temperature exceeds 40 degrees, please reduce power
use, or to strengthen dissipate heat).
Full temperature: 45 ℃
The no-load current: typical 10mA (12V 4.2V)
Load regulation rate: + 1%
Voltage regulation rate: 0.5%
The dynamic response speed: 5% 200uS
Indicator: Constant flow indicator light is red, charging light is
red, after charging indicator light is blue.
Output short circuit protection: Yes, constant current (setting the
value of the constant current).
Connection: Wire can welded in PCB directly.
Battery charging methods:
1. Determine the float voltage and charging current that you need
to charge battery and module's input voltage.
2. Adjustable constant potentiometer, the output voltage is
regulated to about 3V.
3.Use multimeter 10A current block measurement output short circuit
current, meanwhile adjusting the constant current potentiometer to
make output current reaches predetermined current value.
4.The charging turn lamp current default is 0.1 times of charging
current (current value ).If you need, adjust turn lamp current
potentiometer please (generally do not adjust).
5. Adjustable constant potentiometer to make the output voltage to
the floating charge voltage.
6.Connect battery, to try charging (1, 2, 3, 4, 5 steps is the
module input power, output no-load not connected to the battery).
LED constant current driving use methods:
1. Determine you need to drive LED operate current and maximum
working voltage.
2. regulation constant potentiometer; 2, the output voltage is
regulated to 3V.
3.Use multimeter 10A current block measurement output short circuit
current, meanwhile adjusting the constant current potentiometer to
make output current reaches LED operating current.
4.Adjustable constant potentiometer to make the output voltage to
the LED maximum working voltage.
5.Connected to the LED, try test machine. (1, 2, 3, 4 steps is the
module input power, output no-load not connected to the LED lamps).
Photos
